• State Not Answered
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 5 replies
  • Subscribers 22 subscribers
  • Views 23078 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Map file generation using arm-none-eabi

Fahad

Hi all,

We generally get executable and linkable file(ELF) to program Microcontrollers. I wanted to generate MAP file using this elf file to observe various sections of memory. How is it possible using toolchain arm-none-eabi toolchain?

So far I have done something like:

arm-none-eabi-gcc.exe -Xlinker -Map=out.map program.elf

to get some linker script  and memory map

but it is not an exact map file

any suggestions?

best,

Fahad

  • 0 Arm Employee Badge

    Hi Fahad,

    Can you be more specific about what is inexact in that map file?

    Best regards.

  • 0 in reply to Thomas Preudhomme

    Hi,

    I needed the memory regions occupied by my code. I got it by giving -map=out.map to the compiler in my make file

    thanks

  • 0 in reply to Thomas Preudhomme

    Can you help me to make a map file in makefile?

    I've got some error as the below,

    arm-none-eabi-gcc -g -O3 -mthumb -mcpu=cortex-m3 ../../../../software/cmsis/Device/ARM/CMSDK_CM3/Source/GCC/startup_CMSDK_CM3.s \
                hello.c \
                ../../../../software/common/retarget/retarget.c \
                ../../../../software/common/retarget/uart_stdout.c \
                ../../../../software/cmsis/Device/ARM/CMSDK_CM3/Source/system_CMSDK_CM3.c \
                -I ../../../../software/cmsis/Device/ARM/CMSDK_CM3/Include -I ../../../../software/cmsis/CMSIS/Include \
                -I ../../../../software/common/retarget \
                -L ../../../../software/common/scripts \
                -D__STACK_SIZE=0x200 \
                -D__HEAP_SIZE=0x1000 \
                -DCORTEX_M3 -T ../../../../software/common/scripts/cmsdk_cm3.ld -o hello.o
# Generate disassembly code
arm-none-eabi-objdump -S hello.o > hello.lst
# Generate binary file
arm-none-eabi-objcopy -S hello.o -O binary hello.bin
# Generate hex file
arm-none-eabi-objcopy -S hello.o -O verilog hello.hex
# Generate map file
#arm-none-eabi-gcc -Xlinker -Map=out.map program.elf
arm-none-eabi-gcc -Xlinker -Map=out.map
/opt/gcc-arm-none-eabi-4_9-2015q3/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/libc.a(lib_a-exit.o): In function `exit':
exit.c:(.text.exit+0x2c): undefined reference to `_exit'
/opt/gcc-arm-none-eabi-4_9-2015q3/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/crt0.o: In function `_start':
(.text+0xec): undefined reference to `main'
collect2: error: ld returned 1 exit status
make: *** [all_gcc] Error 1

    Could you help me and let me know what am I supposed to do to resolve this problem?

  • 0 in reply to ele

    Why are you giving hello.o after -o? The compiler flag -o should be followed by output executable name. Just remove .o and it should work. You can try giving hello instead. Hope it resolves your problem

  • 0 in reply to ele

    Hi,

    I hope you have already figured out your problem, but still try to give -Map=out.map to the arm-none-eabi-gcc as an argument.